Rall-winding machine



Sept 18,1923. MAMA-M E. L. SCHICK BALL WINDING MACHINE Sept. 18,1923. ma ma E. L. SCHICK BALL WINDING MACHINE Filed Nov. 17 1920 2 Sheets- Sheet 2 lid ings ball on a vertical axis,

rollers 15 an intermittent, rotary motion to' Fatented Sept. 18, E923.

- a. scnrcx, or enacts, onto, assreiton no one a. r. eoonarc com-rt a a rose, is. 2., a eonronarrorr or N roan.

T5 ENG MACEME.

Application filed November 17, 1920. Serial We. 424,586

To all whom it may concern:

citizen of the United States, residin at Akron, in the county of Summit and tate of Ohio have invented certain new and'useat Ball-Winding Mahhines, of which the following is a specification.

This invention relates to the automatic winding of balls, and particularly to means for causing a. ball-winding machine to stop promptly when'the ballv has attained a predetermined size The particular embodi ment illustrated 1n the accompanying drawand herein described is applied to a machine for winding rubber thread-upon a core to form a center for a golf ball.

The principal object of my invention is to provide an automatic power-releasing and brake-applying mechanism whichwill e accurately timedand substantially instantane one in its opcration'soas to prevent continued windin of the ball after the desired size, as pre etermined by the setting of the machine, has been reached.

Further general objects such as dependability and simplicity of construction will ap ear hereinafter.

St the accompanying drawm r Fig. 1 is aplan view of a gel -ball winding machine embodying a preferred form of my invention. 4 i

Fig. 2 is a section on the line 2- -2 of Fig. 1,-showing the brake and part of my mechanism for operating the same.

a brake-applying and power releasing arm.

on the line 4-4 of Fig. 4: is a section Fig. i. H

ig. 5 is a section on .the line 5-5 of eferring to the drawings, is a base plate on which is mounted a peripheraldrive ring-winder 11 on a ball bearing 12 in a circular track 13. 14:, 14 are reciprocating heads of the usual form, each provided with "a pair of parallel ball-holding rollers 15 in connection with suitable mechanism for imparting reciprocal, horizontal motion to the heads 14: in opposite directions to turn the and to impart to the turn the ball on a horizontal axis.

16 is a thread spool mounted on said rlngrrindn at one side ofthe plane, and is a. gi lie-reiteralso mounted upon the ing provided with.

ring-winder 11 but on the other side of the wmdmg plane, on an axis transverse to that of the spool and so positionedas to receive ,thread from different parts of the spool in. planes approximately at right angles to its axis 18 1s a guide tension roller on the same side of the winding plane with the spool. 19 1s a guide-roller adjacent the winding plane an 20 is a slotted needle adapted to guldethe thread onto the ball, all of said members being mounted upon the ringwinder 11.

The heads 1% with the ball-holding rollers 15, as usual, are adapted to be forced apart by the ball as it enlarges, against the action of compress1on springs 21. 22, 22 are a pair of bell-crank levers pivoted to the frame at 23, 23, the short arms of which are opposed to each other and termed with in-. termeshed gear segments. 'lheir long arms are formed with forks which straddle studs 24;, 24secured to the heads 14. 25 is a slidable arm of 1rregular form supported under the base plate i0 b y a flanged hand-knob 26 slidably mounte in a slot 27 in said baseplate and secured to one end of said arm, and by a spring-rod 28 extending from the other end of said arm and slidably inserted through a bracket 29 secured to theunder side of the base plate 10. 28 is a compression spring on said spring-rod 28, interposed between the bracket 29 and the arm 25, 30 is a belt-shifter secured to said arm 25, 31 is a drive-pulley secured upon a mainshaft, 31 and 32 is an-idle pulley of the same size, loosel journalled upon sald main-shaft adjacent t e drive-pulley 31. '32 is-a drive belt, 33 is a brake-drum secured upon the other end of the main-shaftBl, and 34 is a brake-band thereon, one end of which is se- .cured to the base plate 10, the other end hea collar 35 slidably mounted upon a-spring-rod 36 extending downward from the base-plate 10. The collar 35 is provided with'a cam roller 37 and with a handle 38 extendingthrough an opening .to the outside of the trainee]?- the machine. 39 is a compression spring on thefspring-rod 36 interposed between the collar 35 an ad'- justable nutson the endjof said rod. 4:0 is a cam member secured tothefend of the arm .25 and adapted to engage the cam roller 37. ,4]. is a, slidable latch member formed with slots 4:2, 4:2 and slidably secured to the top of base plate 10 by stud-screws 43 slidably mounted in said slots. 44 is an expansion spring interposed between one of said stud screws 43 and the member 4-1. 45 is an adjustable stud-bolt extending from said latch member and abutting against the long arm of one of the bell-erank levers 22 under ac tion of the spring ll, this stud-bolt serving as an. adjustment for variably timing the action of the latch-trippin lever 22. The

slidable springdateh member all is provided with a downwarally-extending bar or keeper 46 adapted to engage a notch l7 formed in the contiguous side of the arm 25.

In the operation of the device, the core, as usual, is placed between the two pairs of parallel rollers 15 and the rubber thread from the spool 16 is passed around the rollers 17, 1S and 19. through the slotted needle,'as shown in Fig. 2, and the end of the thread is held snubbed around the core while the machine is started by sliding the arm 25, by means of the hand-knob 26, against the action of the 1empression-spring 28, until the notch ll engages the bar 46 of the spring-latch member ll, and thereby retains the arm in operative position. This movementof the arm through the cam member 46 and the roller 37 on the collar 35, spreads the brake-band 34, against the action of spring 31) and also. through the belt-shifter 3t), shifts the belt 32 from the idler-pulley 32 onto the drive pulley 31. The first few revolutions of the winder se' cure the end of the thread to the core.

The guide-roller 17 being on the opposite side of the winding plane from the spool 16, and consequently ,ata substantial distance therefrom, results in a relatively small variation of the angle at which it receives the thread from different parts of the spool and, its axis being transverse to that of the spool, it receives the thread always from directions approximately at right angles to its axis. By reason of such positioning of the roller 17, the thread is not unduly impelled to climb or slide axially upon it.

It is important that the machine be stopped substantially instantaneously when the ball has reached the desired size in order that the rotary momentum of the several rollers and the variation of friction at reduced speed may not result in the winding of. several cdnvolutions of thread under nonuniform tension while the winder is stopping. i

As the ball enlarges it forces apart the heads 14 and with them the long arms of their respective bell-crank levers 22. against the springs 21, the meshed gear, segments at the ends of the short arms of said bell-crank.

levers compelling the heads 14 to recede from the winding plane equally, thus retaining the ball in proper alignment. hen the ball has-reached the desired size, as predetermined bythe setting" of "the stud-bolt 45 on the slidable latch member 4-1, the long arm of the adjacent bell-crank lever 22, in contact with said stdd-b0lt, slides said latch member away from the arm .25, against the action of spring ll, until the bar 46 disengages from the notch 47, releasing the arm 25, which thereupon is shot into stopping position by the spring 28. This movement of the arm 25 by the spring 28 withdraws the cam member 40 from, the roller 37, releasing the spring 39, whereby the brake is applied, and at the same instant, through the belt shifter 30, throws the belt 32 from the drive-pulley 31 to the idler-pulley 32, thus releasing the power. It will be seen that with this mechanism the release of the power and the application of the brake is instantaneous and with proper adjustment of the spring 39 the stopping of the machine may be practically so.

I am aware that variations of construction may be resorted to without departing from the invention, and I do not limit myself to the specific construction shown.

I claim:

1. In a ball winding machine the combination of a ball-holding head. yielding means urging said head toward the winding plane but adapted to be overcome by pressureof the ball as the latter enlarges. a drive shaft for said machine. a drive pulley. an idler pulley, and a brake drum mounted on said shaft, a braking member associated with said brake-drum, a drive belt associated with said pulleys, a slidable arm disposed lengthwise of said shaft, a belt shifter on said arm for shiftin said belt, means .on said arm for controll'ng said braking member, yielding means impelling said arm toward stopping position, and a latch for holding said arm in running position, against the force of said yielding means. said lat-ch being adapted to be tripped by movement of said head when the ball has attained a determinate size.

2. In a ball-winding machine the combination of a power-stopping member, a brake mechanism, means for yieldingly impelling the same toward their stopping with a cam surface, a belt shifter associated with said arm, a brake-drum, a brake-band associated therewith, a guide member at one end of a said brake-band and associated with the cam surface of said arm. a stud-bolt slidably extending through said guide' member a spring: adapted to cause said brakeband to engage said brake-drum a spring adapted to impel said slidable arm out of association with said guide member, a latch member slidable transversely of said arm and provided with a surface adapted to coact with the latch engaging surface thereof, a spring adapted yielding to hold said slidablc latch member in engagement with said arm, and an adjustable contact member mounted upon said slidable latch member.

4. In a ball-winding machine the combination of a ball-holding head adapted yieldingly to recede from the windin plane as the ball enlarges, a latch mechanism, a lever associated. with said head and adapted to contact with said latch mechanism and trip the same when the ball has attained a predetermined size. a spring-impelled, slidable arm associated with said latch mechanism. a spring impelled brake mechanism associated with said arm, and a belt shifter at tached to said arm.

In witness'whereof I have hereunto set my hand this 10th day of November, 1920.

EDWARD L. SCHICK. 

